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libs-gsweb/GSWeb.framework/GSWResponse.m
Manuel Guesdon 1e88f582b9 2003-05-14 Manuel Guesdon <mguesdon@orange-concept.com> 
* GSWeb.framework/GSWRequest.h/.m:
		o added ivar _browserAcceptedEncodings
		o added -browserAcceptedEncodings
		o modified browserLanguages to use quality indicator
	* GSWeb.framework/GSWConstants.h/.m:
		o added GSWHTTPHeader_AcceptEncoding
	* GSWeb.framework/GSWResponse.h/.m:
		o added ivar _acceptedEncodings
		o added -acceptedEncodings
		o added -setAcceptedEncodings:
	* GSWeb.framework/GSWComponentRequestHandler.m:
		o set request  browserAcceptedEncodings to response
	* GSWeb.framework/GSWComponent.m:
		o set request  browserAcceptedEncodings to response
	* GSWeb.framework/NSData+Compress.h/.m:
		o added
	* config.h.in
		o added HAVE_ZLIB


git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gsweb/trunk@16718 72102866-910b-0410-8b05-ffd578937521
2003-05-14 08:30:22 +00:00

1068 lines
31 KiB
Objective-C
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/** GSWResponse.m - <title>GSWeb: Class GSWResponse</title>
Copyright (C) 1999-2003 Free Software Foundation, Inc.
Written by: Manuel Guesdon <mguesdon@orange-concept.com>
Date: Jan 1999
$Revision$
$Date$
$Id$
This file is part of the GNUstep Web Library.
<license>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
</license>
**/
#include "config.h"
RCS_ID("$Id$")
#include "GSWeb.h"
#include "NSData+Compress.h"
//====================================================================
@implementation GSWResponse
NSStringEncoding globalDefaultEncoding=NSISOLatin1StringEncoding;
static NSString* disabledCacheDateString=nil;
static NSArray* cacheControlHeaderValues=nil;
//--------------------------------------------------------------------
+(void)initialize
{
if (self==[GSWResponse class])
{
// So cache date stamp will be set to earlier date
ASSIGN(disabledCacheDateString,[[NSCalendarDate date] htmlDescription]);
// Other cache control headers
ASSIGN(cacheControlHeaderValues,([NSArray arrayWithObjects:@"private",
@"no-cache",
@"no-store",
@"must-revalidate",
@"max-age=0",
nil]));
};
};
//--------------------------------------------------------------------
// init
-(id)init
{
//OK
LOGObjectFnStart();
if ((self=[super init]))
{
_httpVersion=@"HTTP/1.0";
_status=200;
_headers=[NSMutableDictionary new];
[self _initContentData];
_contentEncoding=NSISOLatin1StringEncoding;
};
LOGObjectFnStop();
return self;
};
//--------------------------------------------------------------------
-(void)dealloc
{
// GSWLogAssertGood(self);
// NSDebugFLog(@"dealloc Response %p",self);
// NSDebugFLog0(@"Release Response httpVersion");
DESTROY(_httpVersion);
// NSDebugFLog0(@"Release Response headers");
DESTROY(_headers);
// NSDebugFLog0(@"Release Response contentFaults");
DESTROY(_contentFaults);
// NSDebugFLog0(@"Release Response contentData");
DESTROY(_contentData);
DESTROY(_acceptedEncodings);
// NSDebugFLog0(@"Release Response userInfo");
DESTROY(_userInfo);
//NSDebugFLog0(@"Release Response cookies");
DESTROY(_cookies);
// NSDebugFLog0(@"Release Response");
[super dealloc];
};
//--------------------------------------------------------------------
-(id)copyWithZone:(NSZone*)zone
{
GSWResponse* clone = [[isa allocWithZone:zone] init];
if (clone)
{
ASSIGNCOPY(clone->_httpVersion,_httpVersion);
clone->_status=_status;
ASSIGNCOPY(clone->_headers,_headers);
ASSIGNCOPY(clone->_contentFaults,_contentFaults);
ASSIGNCOPY(clone->_contentData,_contentData);
clone->_contentEncoding=_contentEncoding;
ASSIGNCOPY(clone->_acceptedEncodings,_acceptedEncodings);
ASSIGNCOPY(clone->_userInfo,_userInfo);
ASSIGNCOPY(clone->_cookies,_cookies);
clone->_isClientCachingDisabled=_isClientCachingDisabled;
clone->_contentFaultsHaveBeenResolved=_contentFaultsHaveBeenResolved;
};
return clone;
};
//--------------------------------------------------------------------
// content
-(NSData*)content
{
//TODO exception..
return _contentData;
};
//--------------------------------------------------------------------
// willSend
//NDFN
-(void)willSend
{
NSAssert(_isFinalizeInContextHasBeenCalled,@"GSWResponse _finalizeInContext: not called");
};
-(void)forceFinalizeInContext
{
_isFinalizeInContextHasBeenCalled=YES;
};
//--------------------------------------------------------------------
// headerForKey:
// return:
// nil: if no header for key_
// 1st header: if multiple headers for key_
// header: otherwise
-(NSString*)headerForKey:(NSString*)key
{
id object=[_headers objectForKey:key];
if (object && [object isKindOfClass:[NSArray class]])
return [object objectAtIndex:0];
else
return (NSString*)object;
};
//--------------------------------------------------------------------
// headerKeys
// return array of header keys or nil if no header
-(NSArray*)headerKeys
{
return [_headers allKeys];
};
//--------------------------------------------------------------------
// headersForKey:
//return array of headers of key_
-(NSArray*)headersForKey:(NSString*)key
{
id object=[_headers objectForKey:key];
if (!object || [object isKindOfClass:[NSArray class]])
return (NSArray*)object;
else
return [NSArray arrayWithObject:object];
};
//--------------------------------------------------------------------
// httpVersion
//return http version like @"HTTP/1.0"
-(NSString*)httpVersion
{
return _httpVersion;
};
//--------------------------------------------------------------------
-(NSArray*)acceptedEncodings
{
return _acceptedEncodings;
};
//--------------------------------------------------------------------
// setContent:
//Set content with contentData_
-(void)setContent:(NSData*)contentData
{
if (contentData)
{
NSMutableData* aData=[[NSMutableData new]autorelease];
[aData appendData:contentData];
contentData=aData;
};
ASSIGN(_contentData,(NSMutableData*)contentData);
};
//--------------------------------------------------------------------
// setHeader:forKey:
-(void)setHeader:(NSString*)header
forKey:(NSString*)key
{
//OK
id object=nil;
NSAssert(header,@"No header");
NSAssert(key,@"No header key");
object=[_headers objectForKey:key];
if (object)
[self setHeaders:[object arrayByAddingObject:header]
forKey:key];
else
[self setHeaders:[NSArray arrayWithObject:header]
forKey:key];
};
//--------------------------------------------------------------------
// setHeaders:forKey:
-(void)setHeaders:(NSArray*)headers
forKey:(NSString*)key
{
//OK
NSAssert(headers,@"No headers");
NSAssert(key,@"No header key");
if (!_headers)
_headers=[NSMutableDictionary new];
[_headers setObject:headers
forKey:key];
};
//--------------------------------------------------------------------
// setHeaders:
-(void)setHeaders:(NSDictionary*)headerDictionary
{
if (!_headers)
_headers=[NSMutableDictionary new];
if (headerDictionary)
{
NSEnumerator* keyEnum=nil;
id headerName=nil;
keyEnum = [headerDictionary keyEnumerator];
while ((headerName = [keyEnum nextObject]))
{
[self setHeaders:[NSArray arrayWithObject:[headerDictionary objectForKey:headerName]]
forKey:headerName];
};
};
};
//--------------------------------------------------------------------
// headers
-(NSMutableDictionary*)headers
{
return _headers;
};
//--------------------------------------------------------------------
// setHTTPVersion:
//sets the http version (like @"HTTP/1.0").
-(void)setHTTPVersion:(NSString*)version
{
//OK
ASSIGN(_httpVersion,version);
};
//--------------------------------------------------------------------
-(void)setAcceptedEncodings:(NSArray*)acceptedEncodings
{
ASSIGN(_acceptedEncodings,acceptedEncodings);
};
//--------------------------------------------------------------------
// setStatus:
//sets http status
-(void)setStatus:(unsigned int)status
{
_status=status;
};
//--------------------------------------------------------------------
// setUserInfo:
-(void)setUserInfo:(NSDictionary*)userInfo
{
ASSIGN(_userInfo,userInfo);
};
//--------------------------------------------------------------------
// status
-(unsigned int)status
{
return _status;
};
//--------------------------------------------------------------------
// userInfo
-(NSDictionary*)userInfo
{
return _userInfo;
};
//--------------------------------------------------------------------
-(void)disableClientCaching
{
//OK
LOGObjectFnStart();
if (!_isClientCachingDisabled)
{
[self setHeader:disabledCacheDateString
forKey:@"date"];
[self setHeader:disabledCacheDateString
forKey:@"expires"];
[self setHeader:@"no-cache"
forKey:@"pragma"];
//TODO later
/*
if([GSWApp _allowsCacheControlHeader])
[self setHeaders:cacheControlHeaderValues
forKey:@"cache-control"];
*/
_isClientCachingDisabled=YES;
};
LOGObjectFnStop();
};
//--------------------------------------------------------------------
-(NSString*)description
{
NSString* description=nil;
LOGObjectFnStart();
description=[NSString stringWithFormat:
@"<%s %p - httpVersion=%@ status=%d headers=%p contentFaults=%p contentData=%p contentEncoding=%d userInfo=%p>",
object_get_class_name(self),
(void*)self,
_httpVersion,
_status,
(void*)_headers,
(void*)_contentFaults,
(void*)_contentData,
(int)_contentEncoding,
(void*)_userInfo];
LOGObjectFnStop();
return description;
};
@end
//====================================================================
@implementation GSWResponse (GSWContentConveniences)
//--------------------------------------------------------------------
// appendContentBytes:length:
-(void)appendContentBytes:(const void*)bytes
length:(unsigned)length
{
LOGObjectFnStart();
if (length>0)
{
[_contentData appendBytes:bytes
length:length];
};
LOGObjectFnStop();
};
//--------------------------------------------------------------------
// appendContentCharacter:
-(void)appendContentCharacter:(char)aChar
{
LOGObjectFnStart();
[self appendContentBytes:&aChar
length:1];
LOGObjectFnStop();
};
//--------------------------------------------------------------------
// appendContentData:
-(void)appendContentData:(NSData*)dataObject
{
const void* bytes=NULL;
unsigned int length=0;
LOGObjectFnStart();
NSDebugMLLog(@"low",@"response=%p dataObject:%@",self,dataObject);
bytes=[dataObject bytes];
length=[dataObject length];
[self appendContentBytes:bytes
length:length];
LOGObjectFnStop();
};
//--------------------------------------------------------------------
// appendContentString:
-(void)appendContentString:(NSString*)aString
{
LOGObjectFnStart();
NSDebugMLLog(@"low",@"response=%p contentEncoding=%d",self,(int)_contentEncoding);
if (aString)
{
NSData* newData=nil;
NSString* string=nil;
string=[NSString stringWithObject:aString];
NSAssert(string,@"Can't get string from object");
#ifndef NDEBUG
NSAssert3(![string isKindOfClass:[NSString class]] || [string canBeConvertedToEncoding:_contentEncoding],
@"string %s (of class %@) can't be converted to encoding %d",
[string lossyCString],
[string class],
_contentEncoding);
#endif
newData=[string dataUsingEncoding:_contentEncoding];
NSAssert3(newData,@"Can't create data from %@ \"%s\" using encoding %d",
[string class],
([string isKindOfClass:[NSString class]] ? [string lossyCString] : "**Not a string**"),
(int)_contentEncoding);
NSDebugMLLog(@"low",@"newData=%@",newData);
[_contentData appendData:newData];
};
LOGObjectFnStop();
};
//--------------------------------------------------------------------
// appendDebugCommentContentString:
-(void)appendDebugCommentContentString:(NSString*)aString
{
#ifndef NDEBUG
if (GSDebugSet(@"debugComments") == YES)
[self appendContentString:[NSString stringWithFormat:@"\n<!-- %@ -->\n",aString]];
#endif
};
//--------------------------------------------------------------------
// contentEncoding
-(NSStringEncoding)contentEncoding
{
return _contentEncoding;
};
//--------------------------------------------------------------------
// setContentEncoding:
-(void)setContentEncoding:(NSStringEncoding)encoding
{
NSDebugMLLog(@"low",@"setContentEncoding:%d",(int)encoding);
_contentEncoding=encoding;
};
@end
//====================================================================
@implementation GSWResponse (GSWHTMLConveniences)
//--------------------------------------------------------------------
// appendContentHTMLAttributeValue:
-(void)appendContentHTMLAttributeValue:(NSString*)value
{
NSString* string=nil;
LOGObjectFnStart();
NSDebugMLLog(@"low",@"response=%p value=%@",self,value);
string=[NSString stringWithObject:value];
[self appendContentString:[[self class]stringByEscapingHTMLAttributeValue:string]];
LOGObjectFnStop();
};
//--------------------------------------------------------------------
// appendContentHTMLString:
-(void)appendContentHTMLString:(NSString*)aString
{
NSString* string=[NSString stringWithObject:aString];
[self appendContentString:[[self class]stringByEscapingHTMLString:string]];
};
//--------------------------------------------------------------------
-(void)appendContentHTMLConvertString:(NSString*)aString
{
NSString* string=[NSString stringWithObject:aString];
[self appendContentString:[[self class]stringByConvertingToHTML:string]];
};
//--------------------------------------------------------------------
-(void)appendContentHTMLEntitiesConvertString:(NSString*)aString
{
NSString* string=[NSString stringWithObject:aString];
[self appendContentString:[[self class]stringByConvertingToHTMLEntities:string]];
};
//--------------------------------------------------------------------
+(NSString*)stringByEscapingHTMLString:(NSString*)aString
{
NSString* string=[NSString stringWithObject:aString];
return [string stringByEscapingHTMLString];
};
//--------------------------------------------------------------------
+(NSString*)stringByEscapingHTMLAttributeValue:(NSString*)aString
{
NSString* string=[NSString stringWithObject:aString];
return [string stringByEscapingHTMLAttributeValue];
};
//--------------------------------------------------------------------
+(NSString*)stringByConvertingToHTMLEntities:(NSString*)aString
{
NSString* string=[NSString stringWithObject:aString];
return [string stringByConvertingToHTMLEntities];
};
//--------------------------------------------------------------------
+(NSString*)stringByConvertingToHTML:(NSString*)aString
{
NSString* string=[NSString stringWithObject:aString];
return [string stringByConvertingToHTML];
};
@end
//====================================================================
@implementation GSWResponse (Cookies)
//--------------------------------------------------------------------
-(NSString*)_formattedCookiesString
{
LOGObjectFnNotImplemented(); //TODOFN
return nil;
};
//--------------------------------------------------------------------
-(NSArray*)allocCookiesIFND
{
//OK
if (!_cookies)
_cookies=[NSMutableArray new];
return _cookies;
};
//--------------------------------------------------------------------
-(void)addCookie:(GSWCookie*)cookie
{
//OK
NSMutableArray* cookies=nil;
LOGObjectFnStart();
cookies=[self allocCookiesIFND];
if (cookie)
[cookies addObject:cookie];
LOGObjectFnStop();
};
//--------------------------------------------------------------------
-(void)removeCookie:(GSWCookie*)cookie
{
NSMutableArray* cookies=nil;
LOGObjectFnStart();
cookies=[self allocCookiesIFND];
if (cookie)
[cookies removeObject:cookie];
LOGObjectFnStop();
};
//--------------------------------------------------------------------
-(NSArray*)cookies
{
NSMutableArray* cookies=[self allocCookiesIFND];
return cookies;
};
//--------------------------------------------------------------------
//NDFN
-(NSArray*)cookiesHeadersValues
{
NSMutableArray* strings=nil;
NSArray* cookies=[self cookies];
if ([cookies count]>0)
{
int i=0;
int count=[cookies count];
GSWCookie* cookie=nil;
NSString* cookieString=nil;
strings=[NSMutableArray array];
for(i=0;i<count;i++)
{
cookie=[cookies objectAtIndex:i];
cookieString=[cookie headerValue];
NSAssert(cookieString,@"No cookie HeaderValue");
[strings addObject:cookieString];
};
};
return (strings ? [NSArray arrayWithArray:strings] : nil);
};
@end
//====================================================================
@implementation GSWResponse (GSWResponseA)
//--------------------------------------------------------------------
//NDFN
-(BOOL)isFinalizeInContextHasBeenCalled
{
return _isFinalizeInContextHasBeenCalled;
};
//--------------------------------------------------------------------
-(void)_finalizeInContext:(GSWContext*)aContext
{
//OK
NSArray* setCookieHeader=nil;
NSArray* cookies=nil;
GSWRequest* request=nil;
int applicationNumber=-1;
int dataLength=0;
NSString* dataLengthString=nil;
LOGObjectFnStart();
NSAssert(!_isFinalizeInContextHasBeenCalled,@"GSWResponse _finalizeInContext: already called");
#ifndef NDEBUG
if(GSDebugSet(@"GSWDocStructure"))
{
NSString* docStructure=[aContext docStructure];
if (docStructure)
[self appendDebugCommentContentString:docStructure];
}
#endif
//TODOV: if !session in request and session created: no client cache
if (![self _isClientCachingDisabled] && [aContext hasSession] && ![aContext _requestSessionID])
[self disableClientCaching];
[self _resolveContentFaultsInContext:aContext];
setCookieHeader=[self headersForKey:GSWHTTPHeader_SetCookie];
if (setCookieHeader)
{
ExceptionRaise(@"GSWResponse",
@"%@ header already exists",
GSWHTTPHeader_SetCookie);
};
cookies=[self cookies];
if ([cookies count]>0)
{
id cookiesHeadersValues=[self cookiesHeadersValues];
NSDebugMLLog(@"low",@"cookiesHeadersValues=%@",cookiesHeadersValues);
[self setHeaders:cookiesHeadersValues
forKey:GSWHTTPHeader_SetCookie];
};
request=[aContext request];
applicationNumber=[request applicationNumber];
NSDebugMLLog(@"low",@"applicationNumber=%d",applicationNumber);
//TODO
/* if (_applicationNumber>=0)
{
LOGError(); //TODO
}; */
dataLength=[_contentData length];
#ifdef HAVE_ZLIB
// Now we see if we can gzip the content
if (dataLength>1024) // min length: 1024
{
// we could do better by having parameters for types
NSString* contentType=[self headerForKey:@"content-type"];
if ([contentType isEqualTo:@"text/html"])
{
NSString* contentEncoding=[self headerForKey:@"content-encoding"];
// we could do better by handling compress,...
if ([contentEncoding length]==0 // Not already encoded
&& [_acceptedEncodings containsObject:@"gzip"])
{
NSDate* compressStartDate=[NSDate date];
NSData* compressedData=[_contentData deflate];
NSDebugMLog(@"compressedData=%@",compressedData);
if (compressedData)
{
#ifdef DEBUG
NSDate* compressStopDate=[NSDate date];
NSString* sizeInfoHeader=[NSString stringWithFormat:@"deflate from %d to %d in %0.3f s",
dataLength,
[compressedData length],
[compressStopDate timeIntervalSinceDate:compressStartDate]];
[self setHeader:sizeInfoHeader
forKey:@"deflate-info"];
#endif
ASSIGN(_contentData,compressedData);
dataLength=[_contentData length];
[self setHeader:@"gzip"
forKey:@"content-encoding"];
};
};
};
};
#endif
dataLengthString=[NSString stringWithFormat:@"%d",
dataLength];
[self setHeader:dataLengthString
forKey:GSWHTTPHeader_ContentLength];
NSDebugMLLog(@"low",@"headers:%@",_headers);
_isFinalizeInContextHasBeenCalled=YES;
LOGObjectFnStop();
};
//--------------------------------------------------------------------
-(void)_initContentData
{
//OK
DESTROY(_contentData);
_contentData=[NSMutableData new];
};
//--------------------------------------------------------------------
-(void)_appendContentAsciiString:(NSString*)aString
{
NSData* newData=nil;
NSString* string=nil;
LOGObjectFnStart();
NSDebugMLLog(@"low",@"aString:%@",aString);
string=[NSString stringWithObject:aString];
NSDebugMLLog(@"low",@"_string:%@",string);
newData=[string dataUsingEncoding:_contentEncoding];
[self appendContentData:newData];
LOGObjectFnStop();
};
-(void)_appendTagAttribute:(NSString*)attributeName
value:(id)value
escapingHTMLAttributeValue:(BOOL)escape
{
[self appendContentCharacter:' '];
[self _appendContentAsciiString:attributeName];
[self _appendContentAsciiString:@"=\""];
if (escape)
[self _appendContentAsciiString:[[self class]stringByEscapingHTMLAttributeValue:value]];
else
[self _appendContentAsciiString:value];
[self appendContentCharacter:'"'];
};
@end
//====================================================================
@implementation GSWResponse (GSWResponseB)
-(void)_resolveContentFaultsInContext:(GSWContext*)aContext
{
LOGObjectFnNotImplemented(); //TODOFN
};
//--------------------------------------------------------------------
-(void)_appendContentFault:(id)unknown
{
LOGObjectFnNotImplemented(); //TODOFN
};
@end
//====================================================================
@implementation GSWResponse (GSWResponseC)
//--------------------------------------------------------------------
-(BOOL)_isClientCachingDisabled
{
return _isClientCachingDisabled;
};
//--------------------------------------------------------------------
-(unsigned int)_contentDataLength
{
return [_contentData length];
};
@end
//====================================================================
@implementation GSWResponse (GSWResponseD)
//--------------------------------------------------------------------
-(BOOL)_responseIsEqual:(GSWResponse*)aResponse
{
LOGObjectFnNotImplemented(); //TODOFN
return NO;
};
@end
//====================================================================
@implementation GSWResponse (GSWActionResults)
//--------------------------------------------------------------------
-(GSWResponse*)generateResponse
{
return self;
};
@end
//====================================================================
@implementation GSWResponse (GSWResponseDefaultEncoding)
//--------------------------------------------------------------------
+(void)setDefaultEncoding:(NSStringEncoding)encoding
{
globalDefaultEncoding=encoding;
};
//--------------------------------------------------------------------
+(NSStringEncoding)defaultEncoding;
{
return globalDefaultEncoding;
};
@end
//====================================================================
@implementation GSWResponse (GSWResponseError)
//--------------------------------------------------------------------
//NDFN
//Last cHance Response
+(GSWResponse*)responseWithMessage:(NSString*)aMessage
inContext:(GSWContext*)aContext
forRequest:(GSWRequest*)aRequest
{
return [self responseWithMessage:aMessage
inContext:aContext
forRequest:aRequest
forceFinalize:NO];
};
+(GSWResponse*)responseWithMessage:(NSString*)aMessage
inContext:(GSWContext*)aContext
forRequest:(GSWRequest*)aRequest
forceFinalize:(BOOL)forceFinalize
{
GSWResponse* response=nil;
NSString* httpVersion=nil;
LOGClassFnStart();
response=[GSWApp createResponseInContext:aContext];
if (response)
{
NSString* responseString=nil;
if (aContext && [aContext request])
aRequest=[aContext request];
httpVersion=[aRequest httpVersion];
if (httpVersion)
[response setHTTPVersion:httpVersion];
[response setHeader:@"text/html"
forKey:@"content-type"];
[aContext _setResponse:response];
responseString=[NSString stringWithFormat:@"<HTML>\n<TITLE>GNUstepWeb Error</TITLE>\n</HEAD>\n<BODY bgcolor=\"white\">\n<CENTER>\n%@\n</CENTER>\n</BODY>\n</HTML>\n",
[[response class]stringByEscapingHTMLString:aMessage]];
[response appendContentString:responseString];
if (forceFinalize)
[response forceFinalizeInContext];
};
LOGClassFnStop();
return response;
};
@end
//====================================================================
@implementation GSWResponse (GSWResponseRefused)
//--------------------------------------------------------------------
//
//Refuse Response
+(GSWResponse*)generateRefusingResponseInContext:(GSWContext*)aContext
forRequest:(GSWRequest*)aRequest
{
GSWResponse* response=nil;
NSString* httpVersion=nil;
LOGClassFnStart();
response=[GSWApp createResponseInContext:aContext];
if (response)
{
NSString* responseString=nil;
NSString* locationURLString=nil;
NSString* message=nil;
if (aContext && [aContext request])
{
aRequest=[aContext request];
}
httpVersion=[aRequest httpVersion];
if (httpVersion)
{
[response setHTTPVersion:httpVersion];
}
locationURLString = [NSString stringWithFormat:@"%@/%@.gswa",
[aRequest adaptorPrefix],
[aRequest applicationName]];
message = [NSString stringWithFormat:@"Sorry, your request could not immediately be processed. Please try this URL: <a href=\"%@\">%@</a>\nConnection closed by foreign host.",
locationURLString,
locationURLString];
responseString=[NSString stringWithFormat:@"<HTML>\n<TITLE>GNUstepWeb</TITLE>\n</HEAD>\n<BODY bgcolor=\"white\">\n<CENTER>\n%@\n</CENTER>\n</BODY>\n</HTML>\n",
message];
[response _generateRedirectResponseWithMessage:responseString
location:locationURLString
isDefinitive:NO];
if (aContext)
{
[aContext _setResponse:response];
}
};
LOGClassFnStop();
return response;
};
@end
//====================================================================
@implementation GSWResponse (GSWResponseRedirected)
-(void)_generateRedirectResponseWithMessage:(NSString*)message
location:(NSString*)location
isDefinitive:(BOOL)isDefinitive
{
if (message)
{
[self appendContentString:message];
[self setHeader:[NSString stringWithFormat:@"%d",[[self content] length]]
forKey:@"content-length"];
};
if (isDefinitive)
[self setStatus:301]; // redirect definitive !
else
[self setStatus:302]; // redirect temporary !
[self setHeader:location
forKey:@"Location"];
[self setHeader:@"text/html"
forKey:@"content-type"];
[self setHeader:@"YES"
forKey:@"x-gsweb-refusing-redirection"];
}
//--------------------------------------------------------------------
//
//Redirect Response
+(GSWResponse*)generateRedirectResponseWithMessage:(NSString*)message
location:(NSString*)location
isDefinitive:(BOOL)isDefinitive
inContext:(GSWContext*)aContext
forRequest:(GSWRequest*)aRequest
{
GSWResponse* response=nil;
NSString* httpVersion=nil;
LOGClassFnStart();
response=[GSWApp createResponseInContext:aContext];
if (response)
{
if (aContext && [aContext request])
{
aRequest=[aContext request];
}
httpVersion=[aRequest httpVersion];
if (httpVersion)
{
[response setHTTPVersion:httpVersion];
}
[response _generateRedirectResponseWithMessage:message
location:location
isDefinitive:isDefinitive];
if (aContext)
{
[aContext _setResponse:response];
}
};
LOGClassFnStop();
return response;
};
//--------------------------------------------------------------------
//
//Redirect Response
+(GSWResponse*)generateRedirectResponseWithMessage:(NSString*)message
location:(NSString*)location
isDefinitive:(BOOL)isDefinitive
{
GSWResponse* response=nil;
LOGClassFnStart();
response=[self generateRedirectResponseWithMessage:message
location:location
isDefinitive:isDefinitive
inContext:nil
forRequest:nil];
LOGClassFnStop();
return response;
};
//--------------------------------------------------------------------
+(GSWResponse*)generateRedirectDefaultResponseWithLocation:(NSString*)location
isDefinitive:(BOOL)isDefinitive
inContext:(GSWContext*)aContext
forRequest:(GSWRequest*)aRequest
{
NSString* message=nil;
GSWResponse* response=nil;
LOGClassFnStart();
message=[NSString stringWithFormat:@"This page has been moved%s to <a HREF=\"%@\">%@</a>",
(isDefinitive ? "" : " temporarily"),
location,
location];
response=[self generateRedirectResponseWithMessage:message
location:location
isDefinitive:isDefinitive
inContext:aContext
forRequest:aRequest];
LOGClassFnStop();
return response;
};
//--------------------------------------------------------------------
+(GSWResponse*)generateRedirectDefaultResponseWithLocation:(NSString*)location
isDefinitive:(BOOL)isDefinitive
{
GSWResponse* response=nil;
LOGClassFnStart();
response=[self generateRedirectDefaultResponseWithLocation:location
isDefinitive:isDefinitive
inContext:nil
forRequest:nil];
LOGClassFnStop();
return response;
};
@end
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